/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */
var hexcase=0;var b64pad="";var chrsz=8;function hex_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length*chrsz));}
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length*chrsz));}
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length*chrsz));}
function hex_hmac_sha1(key,data){return binb2hex(core_hmac_sha1(key,data));}
function b64_hmac_sha1(key,data){return binb2b64(core_hmac_sha1(key,data));}
function str_hmac_sha1(key,data){return binb2str(core_hmac_sha1(key,data));}
function sha1_vm_test()
{return hex_sha1("abc")=="a9993e364706816aba3e25717850c26c9cd0d89d";}
function core_sha1(x,len)
{x[len>>5]|=0x80<<(24-len%32);x[((len+64>>9)<<4)+15]=len;var w=Array(80);var a=1732584193;var b=-271733879;var c=-1732584194;var d=271733878;var e=-1009589776;for(var i=0;i<x.length;i+=16)
{var olda=a;var oldb=b;var oldc=c;var oldd=d;var olde=e;for(var j=0;j<80;j++)
{if(j<16)w[j]=x[i+j];else w[j]=rol(w[j-3]^w[j-8]^w[j-14]^w[j-16],1);var t=safe_add(safe_add(rol(a,5),sha1_ft(j,b,c,d)),safe_add(safe_add(e,w[j]),sha1_kt(j)));e=d;d=c;c=rol(b,30);b=a;a=t;}
a=safe_add(a,olda);b=safe_add(b,oldb);c=safe_add(c,oldc);d=safe_add(d,oldd);e=safe_add(e,olde);}
return Array(a,b,c,d,e);}
function sha1_ft(t,b,c,d)
{if(t<20)return(b&c)|((~b)&d);if(t<40)return b^c^d;if(t<60)return(b&c)|(b&d)|(c&d);return b^c^d;}
function sha1_kt(t)
{return(t<20)?1518500249:(t<40)?1859775393:(t<60)?-1894007588:-899497514;}
function core_hmac_sha1(key,data)
{var bkey=str2binb(key);if(bkey.length>16)bkey=core_sha1(bkey,key.length*chrsz);var ipad=Array(16),opad=Array(16);for(var i=0;i<16;i++)
{ipad[i]=bkey[i]^0x36363636;opad[i]=bkey[i]^0x5C5C5C5C;}
var hash=core_sha1(ipad.concat(str2binb(data)),512+data.length*chrsz);return core_sha1(opad.concat(hash),512+160);}
function safe_add(x,y)
{var lsw=(x&0xFFFF)+(y&0xFFFF);var msw=(x>>16)+(y>>16)+(lsw>>16);return(msw<<16)|(lsw&0xFFFF);}
function rol(num,cnt)
{return(num<<cnt)|(num>>>(32-cnt));}
function str2binb(str)
{var bin=Array();var mask=(1<<chrsz)-1;for(var i=0;i<str.length*chrsz;i+=chrsz)
bin[i>>5]|=(str.charCodeAt(i/chrsz)&mask)<<(32-chrsz-i%32);return bin;}
function binb2str(bin)
{var str="";var mask=(1<<chrsz)-1;for(var i=0;i<bin.length*32;i+=chrsz)
str+=String.fromCharCode((bin[i>>5]>>>(32-chrsz-i%32))&mask);return str;}
function binb2hex(binarray)
{var hex_tab=hexcase?"0123456789ABCDEF":"0123456789abcdef";var str="";for(var i=0;i<binarray.length*4;i++)
{str+=hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8+4))&0xF)+hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8))&0xF);}
return str;}
function binb2b64(binarray)
{var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";var str="";for(var i=0;i<binarray.length*4;i+=3)
{var triplet=(((binarray[i>>2]>>8*(3-i%4))&0xFF)<<16)|(((binarray[i+1>>2]>>8*(3-(i+1)%4))&0xFF)<<8)|((binarray[i+2>>2]>>8*(3-(i+2)%4))&0xFF);for(var j=0;j<4;j++)
{if(i*8+j*6>binarray.length*32)str+=b64pad;else str+=tab.charAt((triplet>>6*(3-j))&0x3F);}}
return str;}